Questions on heat transfer
Heat Transfer Questions for Engineering (Serial Format)
1. What is the primary mode of heat transfer in solids?
→ Conduction
2. Which law governs the rate of heat conduction?
→ Fourier’s Law
3. What is the SI unit of thermal conductivity?
→ W/m·K
4. Which mode of heat transfer does not require a medium?
→ Radiation
5. What is the heat transfer mechanism in fluids due to bulk motion?
→ Convection
6. Which dimensionless number characterizes convective heat transfer?
→ Nusselt number
7. What is the approximate value of the Stefan-Boltzmann constant?
→ 5.67 × 10⁻⁸ W/m²·K⁴
8. Which law describes the heat radiated by a black body?
→ Stefan-Boltzmann Law
9. What is the SI unit of thermal diffusivity?
→ m²/s
10. Which property affects conduction in a material?
→ Thermal conductivity
11. What is the heat transfer rate equation for conduction?
→ Q = –kA·(dT/dx)
12. Which factor increases convective heat transfer?
→ High fluid velocity
Heat Transfer Questions for Engineering (Serial Format)
1. What is the primary mode of heat transfer in solids?
→ Conduction
2. Which law governs the rate of heat conduction?
→ Fourier’s Law
3. What is the SI unit of thermal conductivity?
→ W/m·K
4. Which mode of heat transfer does not require a medium?
→ Radiation
5. What is the heat transfer mechanism in fluids due to bulk motion?
→ Convection
6. Which dimensionless number characterizes convective heat transfer?
→ Nusselt number
7. What is the approximate value of the Stefan-Boltzmann constant?
→ 5.67 × 10⁻⁸ W/m²·K⁴
8. Which law describes the heat radiated by a black body?
→ Stefan-Boltzmann Law
9. What is the SI unit of thermal diffusivity?
→ m²/s
10. Which property affects conduction in a material?
→ Thermal conductivity
11. What is the heat transfer rate equation for conduction?
→ Q = –kA·(dT/dx)
12. Which factor increases convective heat transfer?
→ High fluid velocity
